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Finding the Fourth Proportional to 94,325, 141,488.46 and 28,661

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Solution

The fourth proportional to 94,325, 141,488.46 and 28,661 is: 42,991.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,325 : 141,488.46 = 28,661 : x
  2. Step 2: Convert to fraction form
    94,325/141,488.46 = 28,661/x
  3. Step 3: Cross multiply
    94,325x = 141,488.46 × 28,661
  4. Step 4: Simplify right side
    94,325x = 4,055,200,752.06
  5. Step 5: Solve for x
    x = 4,055,200,752.06/94,325
  6. Step 6: Final answer
    x = 42,991.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.